* Sees '09 capex $17 billion to $18 billion

* To add 20 new 3G markets in '09

* U-verse video to surpass 30 mln homes in 2011

* Stock up more than 5 percent (Adds background details, share price update)

By Sinead Carew

NEW YORK, March 10 (Reuters) - AT&T Inc (T.N: Quote, Profile, Research) on Tuesday said it would invest $17 billion to $18 billion through capital spending in 2009, in line with its previously announced plan to cut spending by up to about 15 percent.

The company, which had said in December that it was eliminating 12,000 jobs or 4 percent of its workforce, also promised to add nearly 3,000 jobs in growth areas this year while cutting jobs in its traditional wired phone business.

AT&T said it was adding 2,000 new jobs in its wireless, video and broadband business segments, and taking on another 1,000 workers full-time in the United States for jobs that were previously handled by outside overseas contractors.

A spokesperson said that this was part of the company's previously announced plan to move about 5,000 jobs that had been outsourced back to its U.S. internal payroll.